I can't get Cookie to roll over either...
She lays down but when I try to get her to roll her little body over she doesn't really like it and jumps right back up!! I don't get it...I've tried on different occasions but its the one trick that has proven to be the most difficult. I've done it w/ treats, praises, toys, etc. I'll keep trying but if anyone knows of an easy way to teach it...please let us know.